A father plays with his little son on a frozen lake. They stood facing each other, put their hands together and pushed each other so that they move away from each other. If the father moved away with an acceleration of 0.8 m/s^2 and if he weighed four times as much as his son, determine the acceleration by which the son is sliding away. Assume that the force they exerted to each other is applied horizontally and that the contact between their shoes and the ice is frictionless

Q: the vertical ground reaction force from a force plate during the contact phase for a 55 kg runner.…

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Q: It is known that the mass of the 1,2,3 block is the same, which is 2 kg. The mass of block 4 is…

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Q: A small block having a mass of m kg is given a horizontal velocity vo when it slides along the…

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Q: oefficient of kinetic friction between the crate : oefficient of static friction between the man's s…

A: the man is trying to move the block which is hevier than himself. here the concept of the statoc…

Q: UBC Engin A trebuchet uses a falling counterweight to launch a projectile. It can be thought of as a…

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Q: The work done by a car traveling at a constant speed on a flat road can be computed based on the…

A: (a) Calculate the distance travelled in first 20 s. D = 60*0.447*20…

Q: O corresponds to the center of rotation of the hip joint. A is the connection point of the hip…

A: a=8.6cm=0.086mb=34.3cm=0.343mc=89.4cm=0.894mα=43°β=79°θ=69°ω=125Nfm=2062.6N

Q: A ball is tied to the end of a cable of negligible mass. The ball is spun in a circle with a radius…

A: Acceleration of the rotating particle is the product of square of angular speed and radius of…

Q: 1) A truck carries a 100 kg slender uniform pole and accelerates horizontally. Detetermine the…

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Q: A test rocket is fired straight up from rest with a net acceleration of 20.0 m/s². After 4.00…

A: Given data: u=0 m/sa=20 m/s2t=4 sec Need to determine the maximum elevation (height) does the rocket…

Q: A force F = 2 N is applied on a block of mass M= 0.5 kg as shown in figure. The block is constrained…

A: Given, Force magnitude = F = 2 N Angle made by a line of action of force with horizontal = θ = 60o…

Q: A train has a mass of 455 tonne is going up an incline of 1 in 168. The tractive resistance of the…

A: Given data: Mass of the train = 455 tonne Tractive resistance of the train = 47.3 N/tonne Initial…

Q: The force F exerted by the wind on a window varies jointly with the area A of the window and the…

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Q: A mass of 50 kg in space is subjected to an external vertical force of 160 N. If the local gravity…

A: Given, mass of object, m=50kgexternal vertical force, Fext=160NAcceleration due to gravity,…

Q: Under the man's pushing force P= 30.8 lb, the uniform cabinet is sliding on the ground with a…

A: Find the acceleration of cabinet .

Q: Three blocks on a frictionless horizontal surfsce are in contact with eachother as shown below. A…

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Q: Determine the vertical acceleration of the cylinder with a weight WA = 71 lb for each of the two…

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Q: The crane shown in the figure is lifting a 389-kg crate upward with an acceleration of 3.79 m/s².…

A: Mc = 389 kga = 3.79 m/s2 Mp = 108 kg Md = 190 kg r = 0.449 m

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.